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Circulatory system-
What is it's function, what is the vessel structure, and explain the lymph system

Function is transportation. It delivers nutrients and oxygen and perfuses the organs
The vessel structure:
tunica adventia supports the vessel
Tunica media constricts and relaxes
Tunica intima is smooth and slippery
The lymph system picks up 1/10th of fluid and plasma proteins and empties into vascular system in chest cavity

Explain Arteries, veins and capillaries

Arteries-Thick walled, high pressure system. They deliver oxygen and nutrients. They also sense info.
Veins are thin walled and have a low pressure system. Veins pick up waste products and valves prevent back-flow (Clots can be around valves)
Capillaries are single thickness vessels. They connect arteriole and venules, they provide the actual exchange of nutrients, oxygen and waste products.

Give an example of a Chronic arterial disease/disorder

Peripheral Atherosclerosis
The primary sites of involvement are the femoral (groin) and peripheral sites (behind the knee)

What is atherosclerosis

It is a form of arteriosclerosis in which deposits of fat and fibrin obstruct and harden the arteries-it impairs blood supply to the peripheral tissues and leads to peripheral vascular disease PVD.

thrombus form at bifurcations and veins
Newly formed venous thrombus have tails that may detach (emboli)
24-48 hours later will lyse or adhere to vessel wall
**Virchow's triad: Hypercoagulabilty, stasis, and endothelial damage.